Vessel



rerati-nes KARL GUS'IAV HANHRT, OF RUSCHLIKON, SJUITZERLAND, SSGNR T0 EARBEREI WEIDMLANN Affi., GF THALVJ'IL, SEVET'ZERLAND.

VESSEL.

Application filed March 2 To all whom t may concern:

Be it known that I, KARL GUsfrav HAN- HAn'r, a citizen of Switzerland7 residing at Alte Landstrasse 288, TIluschlikon, in the Canton of Zurich and Republic oit Switzerland, have invented certain new and useful improvements in Vessels, of which the 'following is a speciiication.

It is well known that it is dangerous to boil in great clay-vessels because stresses arise in consequence of inequal dilatation,

. such stresses being the cause of bursting or the hollow body.

The object or' the present invention is te render harmless such tensions.

In the accompanying drawing an example oi" the vessel made according to the present invention is shown in a vertical section.

The vessel shown is formed by an inner layer a of clay and an outer layer l) made of armoured concrete which, when the vessel is heated from the interior, increases the resistance against bursting of the clay layer. The crosswise laid reinforcement c, eXtending over the wall and the bottom of the vessel is laid into the outinost zone of tensile stresses of the layer Z) which is preferably of the same thickness throughout. ln this i, ieee.

The Yform of the vessel may be another` one than that in the represented example. ilso the reinforcement may be constructei'l otherwise than as shown.

The receptacle is used in the chemical industry, for instance as a receptacle 'for chemical reactions in which the content of the receptacle is heated by the reaction itself:l or by steam fed into the saine. The receptacle may be used for dissolving metals in aeids, in oxidizing processes, etc.

lVhat I claim is A large tank adapted to be highly heated from the interior and used in the chemical industry including a prepared inner vessel of calcined clay and an outer strong shell formed of reinforced conc-rete.

In testimony whereof l have allixed my signature.

KARL GUSTAV HANHART. 

